inSMTThere are some preparatory works that must be done before printing; otherwise, it will affectLead-free solder pasteThe printing and welding effect. So, what are the matters that need attention?Now, JJY solder Paste Manufacturer will explain it:

1After taking the solder paste out of the refrigerator, pay attention to the expiration date of the solder paste. If it has expired, it cannot be used and should be scrapped. When taking solder paste, the principle of "first in, first out" should be followed. If there is any solder paste that has been opened before but not used up, it should be used first.

2After lead-free solder paste is taken out of the refrigerator, it must be warmed up at room temperature4For more than an hour, avoid the generation of moisture.

3Stir the well-cooled lead-free solder paste with a centrifuge1~2Minutes, or open the lid and stir by hand. The manual stirring time is3Do not open the lid before stirring for about minutes.

4All operations and solder paste specifications, etc. must be well recorded for future verification.

After completing these tasks, lead-free solder paste can be put into use online. Of course, to achieve better soldering results, there are still other preparatory works to be done, such as cleaning the solder paste printer and designing the steel mesh.

15For many years, JJY has been dedicated to the research and development, production and sales of solder paste, providing customers with a complete set of electronic soldering solutions. If you want to learn more about solder paste, please keep following JJY Solder Paste Manufacturer and leave a message online to interact with us.